1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
mixer [17]
3 years ago
9

If 1 kg of each substance in the table changes temperature by 15°C, which

Physics
2 answers:
Nimfa-mama [501]3 years ago
8 0

Answer:

Water.

Explanation:

To know which of the substance that will absorbed the greatest amount of thermal energy, we'll simply determine the amount of energy absorbed by each substance.

This is illustrated below:

For Air:

Mass (M) = 1 kg

Change in temperature (ΔT) = 15 °C

Specific heat capacity (C) = 1.01 KJ/Kg°C

Heat Absorbed (Q) =..?

Q = MCΔT

Q = 1 x 1.01 x 15

Q = 15.15 KJ

Therefore, the heat absorbed by air is 15.15 KJ.

For Plastic:

Mass (M) = 1 kg

Change in temperature (ΔT) = 15 °C

Specific heat capacity (C) = 2.60 KJ/Kg°C

Heat Absorbed (Q) =..?

Q = MCΔT

Q = 1 x 2.60 x 15

Q = 39 KJ

Therefore, the heat absorbed by plastic is 39 KJ.

For Water:

Mass (M) = 1 kg

Change in temperature (ΔT) = 15 °C

Specific heat capacity (C) = 4.18 KJ/Kg°C

Heat Absorbed (Q) =..?

Q = MCΔT

Q = 1 x 4.18 x 15

Q = 62.7 KJ

Therefore, the heat absorbed by water is 62.7 KJ.

For Wood:

Mass (M) = 1 kg

Change in temperature (ΔT) = 15 °C

Specific heat capacity (C) = 1.68 KJ/Kg°C

Heat Absorbed (Q) =..?

Q = MCΔT

Q = 1 x 1.68 x 15

Q = 25.2 KJ

Therefore, the heat absorbed by Wood is 25.2 KJ.

Summary:

Substance >>>>> Heat Absorbed

Air >>>>>>>>>>>> 15.15 KJ.

Plastic >>>>>>>>> 39 KJ

Water >>>>>>>>>> 62.7 KJ

Wood >>>>>>>>>> 25.2 KJ.

From the above calculations, we can see that water will absorb the greatest amount of thermal energy.

777dan777 [17]3 years ago
5 0

Answer:

air

Explanation:

just took the test

You might be interested in
What describes why voters xhoose political canidates?
Alexus [3.1K]
The voters political opinions and what they think what is right and wrong.
4 0
3 years ago
Seja uma carga Q=1.2×10(-8)C no vácuo, distando 40 cm de um ponto M e 50 cm de um ponto N . Determine os pontencias no ponto M e
Len [333]

<span>Americano, por favor?</span>
4 0
3 years ago
Each part of the mixture has the same appearance.
Luden [163]
What is that supposed to mean?
5 0
3 years ago
Can anyone help ????
user100 [1]

Explanation:

1. serie

2.Red

3.16 ohms

4.

I=V/R

6=V/16

V=16×6

V=96 volts

5 0
3 years ago
If a running system has a total change in heat of 295 joules, and it's running at a temperature of 402 kelvin, what is the entro
Liula [17]
The answer is either 75 or 55
7 0
3 years ago
Other questions:
  • If an object has more electrons than protons, what eletrical charge would it carry
    11·1 answer
  • Determine whether the following statements are true or false and give an explanation or counter example. a. If the acceleration
    15·1 answer
  • 30N of force is used to raise a box that weight 60N up an incline plane. What is the mechanical advantage of the incline plane?
    10·1 answer
  • Why can even a small injury to the cornea have a major effect on vision?
    7·1 answer
  • Which of the following would not be useful in trying to correct spherical aberration a. using a combination lens made up of lens
    5·2 answers
  • n explosion breaks an object initially at rest into two pieces, one of which has 2.0 times the mass of the other. If 8400 J of k
    7·2 answers
  • Forces always act in pairs? True or false
    8·1 answer
  • Suppose a ball with mass M hangs vertically from a spring with stiffness k and relaxed length L0. At what length Leq will the ba
    12·1 answer
  • I REALLY NEED HELP PLEASE!!! CAN SOMEONE ANSWER THIS? At 0 ºC, some amount of energy is required to change 1 kg of water from a
    10·2 answers
  • A footballer kicks a ball at an angle of 45° with the horizontal. If the ball was in the air
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!